Import invoices to db

invoice_import.rb

invoices = SmarterCSV.process('invoices.csv', { col_sep: ";" })
not_found = 0
not_matching_id = 0
ok = 0
invoices.each do |invoice|
  tracking_number = TrackingNumber.where(waybill: invoice[:waybill].to_s).first

  if tracking_number
    if tracking_number.user_id.to_i == invoice[:user_id].to_i
      tracking_number.update_attribute(:invoice, invoice[:invoice_file_name])
      ok += 1
    else
      not_matching_id += 1
    end
  else
    not_found += 1
  end
end